Hi Greg, > I am pretty sure that the reason for the slowdown is due to the addition > of the fsync() calls in nc_sync(). We were previously using 4.0 which > was prior to the addition of fsync() and are now using 4.1.3-beta1. No > further investigation is needed on this issue. Yes, that sounds right. You can disable the use of fsync by building with the configure option --disable-fsync. --Russ > --Greg > > On 6/1/11 4:45 PM, Unidata netCDF Support wrote: > > address@hidden, > > > > Your Ticket has been received, and a Unidata staff member will review it > > and reply accordingly. Listed below are details of this new Ticket. Please > > make sure the Ticket ID remains in the Subject: line on all correspondence > > related to this Ticket. > > > > Ticket ID: FFQ-819680 > > Subject: Slowdown in nc_sync() > > Department: Support netCDF > > Priority: Normal > > Status: Open > > > > > > > > The NetCDF libraries are developed at the Unidata Program Center/UCAR, > > in Boulder, Colorado; we are funded primarily by the U.S. National > > Science Foundation. > > > > All support requests are handled by the development team; no > > dedicated support staff are funded at this time. For this reason > > we cannot guarantee response times, nor can we resolve every support > > issue, although we do our best to respond within 72 hours. > > > > It is in the nature of support requests that the same question is > > asked many times. We urge you to search the support archives for > > material relating to your support inquiry: > > > > http://www.unidata.ucar.edu/search.jsp?support&netcdf > > > > If you are having trouble building netCDF, please take a look at the > > "Build Troubleshooter" section of the netCDF home page: > > > > http://www.unidata.ucar.edu/software/netcdf/ > > > > Windows users should see the FAQ list: > > > > http://www.unidata.ucar.edu/software/netcdf/docs/faq.html#windows_netcdf4 > > > > Complete documentation (including a tutorial, and sample programs in > > C, Fortran, Java, and other programming languages) can be found on the > > netCDF Documentation page: > > > > http://www.unidata.ucar.edu/software/netcdf/docs/ > > > > If you resolve your issue through one of these methods, please send a > > reply to this email letting us know that you no longer require > > assistance. This will help us spend more time on netCDF development. > > > > Best regards, > > > > Unidata User Support > > > > > > > Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: FFQ-819680 Department: Support netCDF Priority: Normal Status: Closed
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.